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Blu Tack is a reusable putty-like pressure-sensitive adhesive produced by Bostik, commonly used to attach lightweight objects (such as posters or sheets of paper) to walls, doors or other dry surfaces. Traditionally blue, it is also available in other colours.
The glue is sticky when hot, and solidifies in a few seconds to one minute. Hot-melt adhesives can also be applied by dipping or spraying, and are popular with hobbyists and crafters both for affixing and as an inexpensive alternative to resin casting. In industrial use, hot-melt adhesives provide several advantages over solvent-based adhesives.
Structural adhesives can be used to create load-bearing joints. Although many adhesives such as sealants, hot melt adhesives and even acrylic foam tapes can bear loads, the term structural adhesive is typically used where joints will have lap shear strength greater than 1450 psi. [3] The different types of structural adhesives are: Epoxies
Bostik is a manufacturer and distributor of adhesives and sealants for the construction, industrial and consumer markets. With annual sales of €2.7 billion, the company employs 7,000 people and has a presence in more than 45 countries. Bostik is part of the French-based Arkema group.
Prestik is a rubber-like temporary adhesive that is marketed in South Africa, and manufactured by Bostik. It is water resistant, and can be used in temperatures from -30°C to 100°C. It can be used to secure things in place, such as pieces of paper on walls or fridge doors. It is similar to Blu Tack.
Adhesives may be broadly divided in two classes: structural and pressure-sensitive. To form a permanent bond, structural adhesives harden via processes such as evaporation of solvent (for example, white glue), reaction with UV radiation (as in dental adhesives), chemical reaction (such as two part epoxy), or cooling (as in hot melt).
It has a tackifying effect and is suitable for use in paint, printing ink, adhesives, rubber and other areas where tackiness is required. [ 1 ] Generally, the petroleum resins are not used independently, but have to be used together with other types of resins as promoters, adjusting agents and modifiers in hot-melt adhesive , pressure-sensitive ...
Hot melt coating is the application of a layer to a substrate by pre-melting the desired material and then allowing or forcing the material to cool, solidifying the layer. The process is widely used in industry, including pressure-sensitive adhesives , [ 1 ] labels, pharmaceuticals, [ 2 ] etc.
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related to: bostik hot melt adhesives pdf instructions printable